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frosja888 [35]
3 years ago
13

Câu 1: Trong phân tử este (X) no, đơn chức, mạch hở có thành phần oxi chiếm 36,36 % khối lượng. Số đồng phân bố

Chemistry
1 answer:
enyata [817]3 years ago
3 0
B..............................
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When a beta particle is released from the nucleus of an atom:
Anon25 [30]
When a beta particle<span> is emitted from the </span>nucleus<span> the </span>nucleus<span> has one more proton and one less neutron. This means the </span>atomic<span> mass number remains unchanged and the </span>atomic<span> number increases by 1.
Best answer :
</span><span>b. the number of electrons in the atom increases by one as the beta particle leaves the nucleus and joins the valence electrons</span>
6 0
3 years ago
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Please help with this answer
Igoryamba

Answer:

The answer is wave B, wave A

Explanation:

The closer the waves the higher the pitch. The higher the waves the louder it is.

4 0
3 years ago
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C. Balance these fossil-fuel combustion reactions. (1 point)
storchak [24]

The question is incomplete. The complete question is :

C. Balance these fossil-fuel combustion reactions. (1 point)

C8H18(g) + 12.5O2(g) →    ____CO2(g) + 9H2O(g) + heat

CH4(g) + ____O2(g) →     ____CO2(g) + ____H2O(g) + heat

C3H8(g) + ____O2(g) →    ____CO2(g) + ____H2O(g) + heat

C6H6(g) + ____O2(g)  →   ____CO2(g) + ____H2O(g) + heat

Solution :

C8H18(g) + 12.5O2(g) →    __8__CO2(g) + 9H2O(g) + heat

When 1 part of octane reacts with 12.5 parts of oxygen, it gives 8 parts of carbon dioxide and 9 parts of water along with liberation of energy.

CH4(g) + __2__O2(g) →     __1__CO2(g) + __2__H2O(g) + heat

When 1 part of methane reacts with 2 parts of oxygen, it gives 1 part of carbon dioxide and 2 parts of water along with liberation of energy.

C3H8(g) + __5__O2(g) →    __3__CO2(g) + __4__H2O(g) + heat

When 1 part of propane reacts with 5 parts of oxygen, it gives 3 part of carbon dioxide and 4 parts of water along with liberation of energy.

C6H6(g) + __1/2__O2(g)  →   __6__CO2(g) + __3__H2O(g) + heat

When 1 part of propane reacts with 1/2 parts of oxygen, it gives 6 part of carbon dioxide and 3 parts of water along with liberation of energy.

5 0
3 years ago
An atomic caution with the charge of +1 has the following electron configuration:1s22s22p63s23p6What is the chemical symbol for
SSSSS [86.1K]

The atomic cation with +1 charge with the following configuration:

1s22s22p63s23p6

Is Potassium (K+), remember potassium have 19 electrons in its neutral state, when if losses one electrons it becomes + with one less electron, meaning it will have 18 electrons as a cation.

There are 2 electrons in 1s orbital as it can be seen from the electron configuration.

4 0
1 year ago
What is the symbol for an atom containing 20 protons and 22 neutrons?
olya-2409 [2.1K]
It is an isotope of Calcium, which has the symbol Ca
6 0
3 years ago
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